We could say that any piece of simple armour adds +1 to the armour value of the minifig, and costs 1CP. A piece of "simple armour" is defined as a helmet, shield, breastplate or a pair of grieves. Then two or more pieces of "simple armour" begins to add encumbrance. This way you can armour a minifig any way you want with any combination of "simple armour" and everyone will know what it is and how much protection it offers just by looking at the minifig.

mimetic. WTF no idea that was actually a word... thought it was technobabble that you just made up. Spot on! Thanks for teaching me something.

Brennan, what kinds of greaves exist for minifigs? Let's not make completely new rules for armor when we've already been paring down something that works.

Speaking of something that works: I played brikwars last night, and tested out body armor in a 3v3v3v3. One team had 3 guys with heavy armor, my team had all light armor, one team had all regular minifigs, and one team had one of each. The heavy armor team won, but only because of shitty die rolls - had I succeeded on my heroic feat to have a space ork charge through MG fire to slice an armored gunner's head off with his heavy melee weapon, my team might have won. Either way, not only did light armor not upset the balance of the game too much, but the lightly-armored units actually filled a pretty specific role. They were tough enough to charge into most light-arms attacks, while also being mobile enough to not be slowed down. In return, they still weren't as strong as fully-armored guys, and regular minifigs outmaneuver them pretty easily.

It's definitely at least good enough for quikwars. If you ask me, I'd tell you that greaves or whatever would just be yet another way to show body armor as opposed to heavy armor, but more than that, greaves would exist to look cool as hell. Coolness is far more important than any stat, and you should always remember that.